#include #include using namespace std; using namespace atcoder; // using mint = modint1000000007; // const int mod = 1000000007; // using mint = modint998244353; // const int mod = 998244353; // const int INF = 1e9; // const long long LINF = 1e18; using mint = atcoder::modint; int mod; #define rep(i, n) for (int i = 0; i < (n); ++i) #define rep2(i, l, r) for (int i = (l); i < (r); ++i) #define rrep(i, n) for (int i = (n)-1; i >= 0; --i) #define rrep2(i, l, r) for (int i = (r)-1; i >= (l); --i) #define all(x) (x).begin(), (x).end() #define allR(x) (x).rbegin(), (x).rend() #define P pair template inline bool chmax(A &a, const B &b) { if (a < b) { a = b; return true; } return false; } template inline bool chmin(A &a, const B &b) { if (a > b) { a = b; return true; } return false; } int main() { std::ios::sync_with_stdio(false); std::cin.tie(nullptr); int k, s, n; cin >> k >> s >> n; mod = 10007; mint::set_mod(mod); vectorf(k + 2); vectorfinv(k + 2); f[0] = finv[0] = 1; f[1] = finv[1] = 1; rep2(i, 2, k + 2) { f[i] = f[i - 1] + f[i - 2]; finv[i] = f[i].inv(); } vectora(n + 1); a[1] = s; rep2(i, 2, n + 1) { rep2(j, 1, k + 2) { int i2 = i - j; if (i2 <= 0)continue; a[i] += a[i2] * finv[j - 1]; } } cout << a[n].val() << endl; return 0; } // 0 1 2 3 // 1 1 2 3